DDD can refer to, among others:

Guy Fieri ( /ˈɡaɪ fiːˈɛri/; born January 22, 1968 as Guy Ferry) is a United States restaurateur, author, television personality, and game show host. He co-owns five restaurants in California and is widely known for his television series on the Food Network.

By mid-2010, the Food Network had made Fieri the "face of the network." In 2010, the New York Times reported that Fieri brought an "element of rowdy, mass-market culture to American food television," and that his "prime-time shows attract more male viewers than any others on the network."

Although Fieri has no training as a chef, he worked at various restaurants during high school, and then went on to manage and own restaurants. After graduation in 1987, he went to work for Stouffer's, developing restaurant concepts in Southern California and managing their flagship restaurant in Long Beach, California. After three years, he became District Manager of Louise's Trattoria, managing six locations along with recruiting and training for the restaurants. Fieri attended the University of Nevada, Las Vegas and graduated with a Bachelor of Science in Hotel Management in 1990.

Kumiko Kōda (神田 來未子, Kōda Kumiko^?, born November 13, 1982), better known by her stage name Koda Kumi (倖田 來未, Kōda Kumi^?), is a Japanese singer and songwriter from Kyoto, known for her urban and R&B songs. Having debuted in 2000 with the single "Take Back", Koda gained fame for her seventh single, "Real Emotion/1000 no Kotoba", the songs of which were used as themes for the video game Final Fantasy X-2. Her popularity grew with the release of her fourth studio album Secret (2005), her sixteenth single "Butterfly" (2005), and her first greatest hits album Best: First Things (2005), reaching the number-three, number-two and number-one spot respectively.

Though her early releases presented a conservative, quiet image, since as early as 2003 Koda has adopted a sexier and more provocative style. Because of this image, she has become a fashion leader among young women, setting trends such as the ero-kakkoii style. She has also won many fashion awards such as, the "Best Jeanist Award" and the title of "Nail Queen" yearly since 2006. Since the rise in her popularity, Koda has lent her face and songs to many advertisements. In 2006 and 2007, Oricon named Koda as the top selling artist of the year.Jonathan Ross has called her the Christina Aguilera of Japan, while many also compare her career to that of Britney Spears. Koda has sold more than 12,000,000 records in Japan alone, making her the 18th best selling solo Japanese female artist of all-time.